The 68 pin connector shown in the first picture comes without pins, you crimp pins to the wires and then insert the pins into the connector. They can be removed with the proper tool or sometimes with a suitably sized sewing needle. If you want pins, probably better if I crimp 8" of 20ga wire to the pins so you can just splice into the existing wire as very few people have the proper crimping tool.

 

The TSB is pretty simple; remove the connector and inspect the pins, sometimes they get loose, bent or pushed out the back of the connector.